/**
 * 
 */

var xmlHttp;
function conexion_ajax(){
		try{
				xmlHttp = new XMLHttpRequest();
		}
		catch(e){
				try{
						xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
				}
				catch(e){
						try{
							xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
						}
						catch(e){
								return false;
						}
				}
		}
		return xmlHttp;
}

